调整

HealthMonitor.Service/Biz/db/TDengineService.cs

@@ -1011,13 +1011,28 @@ namespace HealthMonitor.Service.Biz.db
             var filteredCollection = new List<PregnancyHeartRateModel>();
             PregnancyHeartRateModel? previousItem = null;
 
+            //foreach (var item in collection)
+            //{
+            //    if (previousItem == null || Math.Abs((previousItem.LastUpdate - item.LastUpdate).TotalSeconds) >= highFreqSampleInterval)
+            //    {
+            //        filteredCollection.Add(item);
+            //        previousItem = item;
+            //    }
+            //}
+
+
             foreach (var item in collection)
             {
-                if (previousItem == null || Math.Abs((previousItem.LastUpdate - item.LastUpdate).TotalSeconds) >= highFreqSampleInterval)
+                if (previousItem!=null)
                 {
-                    filteredCollection.Add(item);
-                    previousItem = item;
+                    var timeDiff = (previousItem.LastUpdate - item.LastUpdate).TotalSeconds;
+                    Console.WriteLine($"previousItem:{previousItem.PregnancyHeartRate} -- item:{previousItem.PregnancyHeartRate} timeDiff:{timeDiff}--highFreqSampleInterval:{highFreqSampleInterval}");
+                    if (timeDiff >= highFreqSampleInterval)
+                    {
+                        filteredCollection.Add(item);
+                    }
                 }
+                previousItem = item;
             }
 
             // 心率数据量必须30个以上才进行计算